Winter Storm Forecast for November 15, 2026: Sierra Nevada, Lake Tahoe and Alaska Face Snow Alerts

Winter Storm Forecast, Digi Mart USA News (United States): Several active National Weather Service alerts issued on November 15, 2026 warn of snow and winter hazards in parts of the western United States and Alaska. The data reflects selected active alerts as of 13:55 UTC on November 15, 2026, and is not an exhaustive national forecast.

In California, a Winter Weather Advisory from NWS Sacramento covers Lassen Volcanic National Park and higher Sierra Nevada areas above 5,000 feet, including Interstate 80 and Highway 50. Snow is expected above 6,000 feet, with totals of 2 to 7 inches and up to 16 inches near Lassen Park, along with gusts as high as 40 mph. The alert expires at 4:00 PM PST on November 15, 2026.

A separate Winter Weather Advisory from NWS Hanford covers Yosemite National Park outside the valley, Sequoia and Kings Canyon national parks, and other Sierra Nevada areas above 6,000 feet, where up to 5 inches of additional snow is possible. The alert expires at 9:00 AM PST on November 15, 2026, and the advisory runs until 4:00 AM PST on November 17.

Near Lake Tahoe, NWS Reno has issued a Winter Weather Advisory for the Greater Lake Tahoe Area above 7,000 feet, forecasting 3 to 7 inches of snow and ridgetop winds gusting as high as 70 mph. The alert expires at 4:15 AM PST on November 16, 2026, and the National Weather Service warns that strong winds could damage trees and power lines.

In Alaska, NWS Anchorage has a Winter Weather Advisory for East Turnagain Arm, including Portage Valley and Girdwood, expiring at 4:15 PM AKST on November 15, 2026. The alert forecasts 6 to 12 inches of total snow and a light ice glaze, with the precipitation changing to rain by Sunday evening.

NWS Fairbanks has also issued blizzard warnings for the Central and Eastern Beaufort Sea Coast and the Northern Arctic Coast, with gusts as high as 60 mph. The Central and Eastern Beaufort Sea Coast warning expires at 12:00 PM AKST on November 15, 2026, and the Northern Arctic Coast warning expires at 7:00 AM AKST on November 15, 2026. Travel should be restricted to emergencies only.